KATHMANDU: The opposition parties continued House obstruction for the third consecutive day on Sunday. Parties including the main opposition CPN-UML have been protesting the Constitution amendment bill that the government registered at the House recently, claiming the proposal was against national interests. CPN-ML, Nepal Workers and Peasants Party, Rastriya Janamorcha and Nepa Rastriya Party have seconded the UML for the obstruction. As soon as the meeting began today, NWPP lawmaker Anuradha Thapa Magar sought time to speak and demanded that the government immediately withdraw the bill.